Title :
2-D mesh-based synthetic transfiguration of an object with occlusion
Author :
Toklu, Candemir ; Erdem, A. Tonju ; Tekalp, A. Murat
Author_Institution :
Dept. of Electr. Eng., Rochester Univ., NY, USA
Abstract :
This paper addresses 2-D mesh-based object tracking and mesh-based object mosaic construction for synthetic transfiguration of deformable video objects with deformable boundaries in the presence of another occluding object and/or self-occlusion. In particular, we update the 2-D triangular mesh model of a video object incrementally to account for the newly uncovered parts of the object as they are detected during the tracking process. Then, the minimum number of reference views (still images of a replacement object) needed to perform the synthetic transfiguration (object replacement and animation) is determined (depending on the complexity of the motion of the object-to-be-replaced), and the transfiguration of the replacement object is accomplished by 2-D mesh-based texture mapping in between these reference views. The proposed method is demonstrated by replacing an orange juice bottle by a cranberry juice bottle in a real video clip
Keywords :
computer animation; edge detection; image sequences; image texture; mesh generation; motion estimation; optical tracking; video signal processing; 2-D mesh-based object tracking; 2-D mesh-based synthetic transfiguration; 2-D mesh-based texture mapping; 2-D triangular mesh model; animation; cranberry juice bottle; deformable boundaries; deformable video objects; mesh-based object mosaic construction; occluding object; orange juice bottle; real video clip; reference views; replacement object; self-occlusion; still images; Active contours; Animation; Brightness; Deformable models; Layout; Motion estimation; Object detection; Shape; TV; Tracking;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.595333